🧠 Built by SuperML.dev · SuperML.org
51 free tools · no sign-up needed

Every tool you need,
right in your browser

PDF, image, text and developer utilities — all client-side, always free, and fully private.

100% Private Instant Processing Works Offline Always Free

PDF Tools

All processing is 100% offline

6 tools
Image to PDF
Convert images to PDF
Merge PDF
Combine multiple PDFs
Split PDF
Extract pages from PDF
Compress PDF
Reduce PDF file size
PDF to Images
Convert pages to images
Rotate PDF
Fix page orientation

Image Tools

Supports JPEG, PNG, WebP, GIF

6 tools
Compress Image
Reduce image file size
Resize Image
Change image dimensions
Convert Image
Convert between formats
Crop Image
Crop to any size
Remove BG
AI background removal
Watermark
Add text or image watermark

Text & Data

Format, convert & validate data

6 tools
CSV ↔ JSON
Convert between formats
JSON Formatter
Beautify & validate JSON
Markdown
Convert to HTML or PDF
Text Diff
Compare two texts
QR Generator
Generate QR codes
Base64
Encode & decode Base64

Text & Developer

Code, data & developer utilities

12 tools
JSON Formatter
Beautify & validate JSON
YAML Formatter
Format & convert YAML
XML Formatter
Beautify & validate XML
SQL Formatter
Format & minify SQL
Base64
Encode & decode Base64
JWT Decoder
Decode JWT tokens
URL Encoder
Encode & decode URLs
Regex Tester
Test regex patterns
Cron Tester
Parse cron expressions
SVG Optimizer
Clean & optimize SVGs
Text Diff
Compare two texts
Markdown
Convert to HTML or PDF

Generators & Converters

Generate, convert and measure

12 tools
QR Generator
Generate QR codes
Barcode Generator
Create barcode images
UUID Generator
Generate UUIDs
Password Gen
Secure random passwords
Hash Generator
MD5, SHA-256 & more
Lorem Generator
Generate placeholder text
HEX↔RGB
Convert color formats
Color Picker
Pick & convert colors
Timestamp
Unix timestamp converter
Unit Converter
Length, weight, temp…
Word Counter
Count words & chars
CSV ↔ JSON
Convert between formats

AI Utilities

Tools for AI & LLM workflows

7 tools
Token Counter
Estimate GPT token counts
Prompt Formatter
Build OpenAI chat payloads
JSONL Validator
Validate JSON Lines files
OpenAI Validator
Validate API request JSON
Markdown Cleanup
Fix AI-generated Markdown
Chat Cleaner
Clean ChatGPT/Claude exports
Prompt Templates
Fill {{variable}} templates

Media Tools

Audio & video in your browser

2 tools
Audio Converter
Convert audio to WAV
Video Compressor
Compress video files
🧠

Built by the SuperML Team

The same people who teach AI/ML at SuperML.dev & SuperML.org

SimpleTools.one was created by the team behind SuperML.dev and SuperML.org — because we believe the best tools are built by people who understand the problems deeply. Whether you're an ML practitioner who needs quick file conversions, or a developer who wants privacy-first utilities, these tools were made for you.

🚀

SuperML.dev

In-depth articles on LLMs, agentic AI, LangChain, RAG, transformers, and cutting-edge ML research.

Explore AI articles →

🎓

SuperML.org

Structured courses on deep learning, ontologies, forward deployment engineering, and Claude certification prep.

Browse courses →

Client-Side Only

Every tool runs entirely in your browser. Your files never leave your device.

Drag & Drop

Drop files straight onto any tool and start processing in seconds.

Mobile Ready

Fully responsive — works great on any screen size, anywhere.